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Wireless communication method for modulating data signals in a chirp spread spectrum communication system

a communication system and data signal technology, applied in the direction of electrical equipment, digital technique networks, impedence networks, etc., can solve the problem of reducing the accuracy of decoding communications

Active Publication Date: 2021-09-07
KING ABDULAZIZ UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent text describes a method for transmitting data signals in a communication system using overlapping chirps. The method involves modulating the data signals with a plurality of overlapping chirps, which can adjust the data transmission rate based on the number of chirps used. The method can provide benefits such as improved data transmission speed and reliability.

Problems solved by technology

As a result of these conditions, interference, such as multipath interference, reduces the accuracy of decoding the communications.

Method used

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  • Wireless communication method for modulating data signals in a chirp spread spectrum communication system
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  • Wireless communication method for modulating data signals in a chirp spread spectrum communication system

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Embodiment Construction

[0028]In the drawings, like reference numerals designate identical or corresponding parts throughout the several views. Further, as used herein, the words “a,”“an” and the like generally carry a meaning of “one or more,” unless stated otherwise. The drawings are generally drawn to scale unless specified otherwise or illustrating schematic structures or flowcharts.

[0029]Furthermore, the terms “approximately,”“approximate,”“about,” and similar terms generally refer to ranges that include the identified value within a margin of 20%, 10%, or preferably 5%, and any values therebetween.

[0030]Aspects of this disclosure are directed to a system for transmission and non-coherent detection of data signals modulated by a plurality of overlapping chirps in a chirp spread spectrum communication system (CSS), a method for modulating data signals with a plurality of overlapping chirps by an adaptive overlapping transmitter in a CSS communication system and a method for non-coherent detection of da...

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Abstract

A system and methods for transmission and non-coherent detection of data signals modulated by a plurality of overlapping chirps in a chirp spread spectrum communication system (CSS). Data signals input to an adaptive overlapping transmitter are modulated by a plurality of overlapping chirps and transmitted over a wireless communication system to a non-coherent receiver. The coherent receiver includes a chirp matched filter which matches the chirps to an internal chirp signal, a delay filter which delays each chirp, a multiplier which multiplies each delayed chirp by a next chirp, an integrator which sums the amplitudes of the chirps and decision circuitry which determines the polarity of each sum and outputs a stream of ones and zeroes representing the data signals.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]The present application is a Continuation of Ser. No. 16 / 983,575, pending, having a filing date of Aug. 3, 2020. U.S. Patent Application titled “Coherent Detection Of Overlapping Chirp Symbols To Increase The Data Rate Of Chirp Spread Spectrum (CSS) Communication System”, U.S. application Ser. No. 16 / 940,872 which names inventors in common with the inventors of the present disclosure, is incorporated herein by reference in its entirety.BACKGROUNDTechnical Field[0002]The present disclosure is directed to a system and methods for encoding data signals with overlapping chirp signals and for non-coherent detection of an overlapped chirp signal in a chirp spread spectrum communication system (CSS).Description of Related Art[0003]The “background” description provided herein is for the purpose of generally presenting the context of the disclosure. Work of the presently named inventors, to the extent it is described in this background section, as...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): H04B1/00H04B1/69H04B1/04H04B1/16H04L27/20H03F3/19H03H17/02H03K19/20H01Q23/00
CPCH04B1/69H01Q23/00H03F3/19H03H17/02H03K19/20H04B1/04H04B1/16H04L27/20H04B2001/6912H03F3/45475H03F3/195H03F2203/45528
Inventor BARNAWI, AHMED
Owner KING ABDULAZIZ UNIV